Disabling form validation: skipping the isValid() call does not supress the validation, contrary to what is stated in documentaion

[drscre]

The section
http://symfony.com/doc/current/book/forms.html#disabling-validation
states that

Sometimes it is useful to suppress the validation of a form altogether. For these cases,
you can skip the call to isValid() in your controller.

and

If you want to suppress validation completely, remove the isValid() call from your controller.

This does not work because form validation is performed in handleRequest()

[stof]

Indeed, isValid does not perform the validation at all (this is done by a listener on POST_SUBMIT) but gives you the result

[xabbuh]

Is there any easy way to bypass the validation step that we can propose in the docs?

[wouterj]

AFAICS, setting validation_group to false should do the trick.

[drscre]

With validation_groups = FALSE some basic integrity checks will still be performed (like presence of redundant data in POST, which sometimes can happen if you build a dynamic form where fields depend on each other and repaint it via ajax on value change)

[weaverryan]

A little bit related to this, as of Symfony 2.3, the validation_groups option can be set on a button field. So that if you submit using this button, that validation group will be used. That doesn't help this issue, but it would be a nice note to add :).

I think the best thing to do is tell people about setting validation_groups to false. I don't think it's possible to disable the basic integrity checks as these are very fundamental to the way the forms system works. But, I'm also not sure what the use-case is for needing to completely disable validation (since you can always choose to show or not show the errors), so if the validation_groups solution is not good enough and someone has a use-case, tell us :).

• Document setting validation_groups to false with a quick note in the forms chapter (see the original link above)

[xabbuh]

@weaverryan I would move the documentation of validation_groups on a button to a new issue. It is no directly related to this issue I think. But we can interlink both of course. What do you think?

[weaverryan]

@xabbuh I agree! I've moved it to #3358